Parts of the Street aren't very savory. Cramer thinks the only way to change that is with better lighting.

Although he applauds the government's decision to charge two former JPMorgan Chase employees in the London Whale scandal, the Mad Money host isn't so sure it will prevent similar events from happening in the future.

"There are always going to people who try to get over on the system," he says. "This kind of behavior will happen again and again and again. It's human nature and no prosecution is going to stop human nature."

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Of course Cramer believes anyone guilty of criminal behavior should be held accountable to the law, but in this case he wants more.

He wants light.

That is, the Mad Money host wants to see small opaque markets, such as those involved in the 'whale' case, become more transparent.

"As someone who has traded the kinds of instruments, I can tell you that there's way too much guesswork about what they're really worth," he said.